Clock.



F. W. MOORE.

CLOCK.

APPLICATION FILED MAY 22, 1909.

966,038, Patented Aug. 2, 1910.

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F. W. MOORE. OLOOK.

APPLICATION FILED MAY 22, 1909.

966,038. Patented Aug. 2, 1910.

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UNITED srA'rss PATNT enrich FRANK W. MOORE, Oil AUSTIN, ILLINOIS.

'1 'o all w/urm. if. 'm/lq/ concern.

lie it known that l, FRANK W. Moons, a citizen of the United States, residing at Austin, in the county ot'tlook and State of lllinois, have invented a newand useful Improvement in (flocks, of which the following is a s| )ccilicatiou.

My invention relates particularly to clocks actuated by a weight, or weights, automatically hl't'ed, or re-set, by means of an eleetro-niagnet, at short intervals.

My n'imary objects are: to secure in clochs ol' the clmractcr indicated, a more uniform and better driving action through the gear-train; to reduce the .i'riction of operation; to provide for greater economy in the use oi electrical energy in the resetting operation; to reduce the noise of operation to a minimum; and, finally, to accomplish all of thezl'oregomg objects in the simplest and cheapest manner possible. 'lhosc l'amiliur withthe art from the practical standpoint oi the manufacturer and dealer understand that the last-mentioned object is hardly, if at all, less important than any of the others, since an article of this character must be at once cheap enough to sell at po )ular prices and at the same time a reliable and durable time-keeper of practically noiseless operation.

The preferred embodiment of my invention is illustrated in .the accompanying drawings, in which-- V Figure l is a sectional view of the works of a clock, equipped with my improvements;

Fig. 2, a similar view showing the parts in ditl'erent position; and Fig. 8, an elevational view of the mechanism.

A represents the gear-train of a clock'to which motion is communicated to the hourhand i and minute-halal 2; 15,11. weight-arm which co-acts with a gear} of the clocktrain and serves to and (3, an eleetro-magnet serving to reset, or

restore, intermittently at short intervals, thewcight-arm.

'lhe gear-train is supported on the usual frame 4 and comprises, in addition to-th'c gear-wheel 3,-a pinion 4t fixed on the-seine shaft 5 as is the gear-wheel B; a ear-wheel t; meshing with the pinion am fixed on the minute-hand arbor 7; and a inion 8 which communimites motion throug a gear 9 and a pinion it) to the hour-hand arbor it. The gear 3 serves to'acttmte a pinion 12 secured on the shaft 13 which carries the Specification of Iletterl latent. Application filed May 22, 1909. Serial No. 497,653.

actuate the gear-train Patented Au 2, i910.

escapement-wheel 14;. The eseapement-fork, or douhle-pmvl, 15 is mounted on a shaft. 10. A post 17, which may be attached to the casing-front 18, serves as a sup )(ll't for a spring 11) from which the pendulum depends.

The weight-arm B is provided with a bcarin 21, journaled. on t 1e shaft 5 adjacent t 1e gear 3, and is equipped with a spring-held pawl 22which engages directly with the gear-teeth of the wheel 8.

The electro-magnet"U may be oi any. improved constructimi. According to the preferred construction, the poles 2; of the mag-' net are eoncaved, or beveled, and the armature 24. is pivotally suspended from the shaft 7. The shaft 7, also, has pivotally mounted thereon a weight-arm actluttcd member 25, which, preferably, is of yokei'ori'n, having its arms 26 embracing the suspension-arm 27 of the armature. The member is connected, b a link 28, with the weight-arm l-la siort distance from the pivot thereof. vThe member 25 may comprise either a casting, or a sheet-metal memer, produced by proper blanking and stamping operations. lhe armature 2 l hangs normally, like a pendulum, beneath the shaft 7, while the vertically-disposed, upwardlypresented, poles 2; of the ma met are located normally at one side of [tilt below the armature. The member 25 is provided adiacent the arm 27 of the armature with a s oulder, or bearing, 29 adapted to be engagedby the arm 27 when the latter operates to raise the weight. The member 25 carries a yielding contact-member 30 adapted to engage a contact-member 81 carrieC by the arm 27 of the armature. Said contact-members arc-connected with the aircuit 32 of the elcctro-magnet, said circuit being provided with a battery 253, When the wear it descends, driving the clock-train, as the escapement permits, the yielding contact-member 30 engages the contact-member 31, thereby closing the electric circuit, wheremembcr25, weight-urm 1% and connecting;

link 28 thencontinuingto travel under the acquired momentum until the weight-arm is elevated to the position shown 1n F 2.

For a short interval of time, at eac operation of resetting the weight-arm the eartrain is left without an impeliin orce thereon, so far as the weight-arm ltself is concerned. In order to secure continulty of impelling force and smoothness of operation at the resetting periods, I support-a awlactuating lever 34 on a pivot 35 slight y below the gear 6 and near the welght-arm 27; equip the. upper end of the lever 34 wlth a pawl 36 which engages the gear 3; attach a spring 38 to the lever 34 somewhat above its path, and connect the same, by a link 39, with the armature-arm 27 and equlp the upper end of the spring 38 with a selfrlghting pawl 40 which engages the lower' portion of the gear 3. It willbe understood that when the armature is drawn to the position shown in Fig. 2, the spring 38 will be placed under tension, thereby exerting an impelling action upon the wheel 3 through the medium of the pawl 36. When the .ar-

mature moves into the dposition shown in Fig. 2, the pawl 40 is rawn to the right from the position shown in Fig. 1 through the space of one or more teeth, and as the gear 3 -continues to rotate the lpawl4O and 5 ring 38 return to their normal posltlon, as oes also the pawl-lever 34 The pawllever 34 normally rests, when in inactive positlon, against a stop 41. I

The operation may be stated br efly thus: Assuming the weight-arm B to be in the elevated position, the wei ht-arm w1ll serve,

' through the medium of t e pawl 22, to actupelling action on the gear-train.

meantime, the

ate the gear-train of the clock, the movement being regulated by the escapement 1n the usual way. When the weightarm reaches the lower end of its travel, the

swingingly-sus ended actuating member 25, V

which is linke to the weight-arm, carries the yielding-contact-member 30 into contact with the contact-member 31 on the armature-arm, thereby closing the circuit of the electro-magnet, whereupon the armature is thrown to the position shown in Fig. 2. In this operation, the weight-arm actuatingmember 25, the weight-arm and connecting link, are given an impetus suflicient to carry them to the position shown in Fig. 2, the pawl 22 slipping idly over the gear-teeth of the wheel 3 in this operation. During the movement of restoration of the weight-arm to its elevated position, the spring 38 is under tension, thereby causing the pawl-lever 34 to operate through the medium of the 'pawl 36 upon thegear 3 and exert an im- In the pawl- 40 is carried to the right from the position shown-in Fig. 1,

shpping over a tooth or the teeth of the gear 3, and the awls 36 and 40 coiiperate to exert an impel ingaction upon the gearaeepse train until the normal position of rest of said parts shown in Fig. 1 is resumed. In the meantime, the. pawl 22 has taken a fresh hold and the weight-arm B again operates and economical use of electrical energy in' the resetting operation; also, my invention provides for the attainment of the desirable ends herein suggested with the utmost cheapness of construction consistent with good results. Furthermore, the device operates quite noiselessly, and the construction is thoroughly durable. It is to be observed that by causing the actuating-pawls of the gear-train to operate directly upon the geartccth of one of the wheels of the gear-train, the use of ratchet-wheels is obvlated, and the pawls may act at an advantageous leverage on a large gear-wheel.

What I regard as new, and desire to secure by Letters Patent, is

1. The combination with the gear-train of a clock, of an actuating-arm therefor, an electro -magnct having an armature, and a swinging independently mounted armatureactuated, arm-actuating member adapted to independent movement with relation to said armature.

2. The combination with the gear-train of a clock, of a gravity-impelled actuatingarm therefor, an electro-magnet, a swinging armature, an independently-swinging armature-actuated member, and a link connecting said member to said arm.

of a clock, of a weight-impelled actuatingarm therefor, a-pivotally-suspended armature, an electro-magnet having u wardlypresented cores .located out of a l with said armature when the latter is in the normal position of rest, an inde endentlyinement movable armature-actuated mem er, and a chain .of connecting means between said last-named member. and said actuating arm."

5. The combination with the gear-train of a clock, of a gravity-impelled actuatingmember therefor, a pivot, an armature sus pended therefrom, an electro-magnet having poles adapted to draw said armature from its normal position of rest, thereby swing ing the armature about its pivot, an independentlypivoted armature-actuated member having its axis near the axis of the armature, and connecting-means joining said to such gravityto be struck by the armature, and a link connecting the armature-actuated member to said gravity-impelled arm.

7. The combination with the gear-train of a clock, of a gravity-impelled actuating-arm therefor, an electro magnet, an armature therefor serving to restore said actuatingarm to its elevated position, a pawl-equipped member serving to actuate the gear-train during the period of restoration of the weight-impelled arm, and armature-flexed tension-means for actuating said last-named element.

8. The combination with the gear-train of a clock, of a weight-impelled, pawl-equipped actuating-arm, a suspended armature, an electro-magnet, an armature-actuated member linked to said arm, a pawl-equipped lever equipped with a spring, and connecting means between said spring and said armature.

9. The combination'with the gear-train of v a clock, of a weight-impelled, pawl-equipped actuating-arm, a suspended armature, an

electro-magnet, an armature-actuated mem-' ber linked to said arm, a pawl-equipped 1ever equipped with a spring, connecting means between said-spring'and said armature, and an actuating-pawl carried by said spring.

10. The combination with a gear-Wheel of a clock-train, of a gravity-impelled arm equipped with a pawl directly engaging the gear-teeth of said wheel, an electro-magnet, an armatureeserving to restore said arm to its elevated position, a lever equipped with a pawl engaging the gear-teeth of said -wheel, a spring attached to said lever and linked to said armature, and a pawl carried by said spring and engaging the gear-teeth of said wheel.

11. The combination with the gear-train of a clock, of an actuating arm therefor, an

electro-magnet, a pendent armature pivotally suspended out of vertical line with said magnet, a pendent arnractuating member pivoted adjacent to said armature, and means connecting said member with the clock-actuating arm.

' 12. The combination with the gear-train of a clock, of an actuating arm therefor, an electro-magnet, a pendent armature pivotally suspended out of vertical line with said magnet, a pendent arm-actuating member pivoted adjacent to said armature, means connecting said member with the clock-actuating arm, and means connected with said armature whereby the gear-train is actuated during the period of re-setting of the gearactuating arm.

' FRANK W. MOORE. In presence of- R; A. RAYMOND,

ILA. SGHAEFER. 

